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Finding the Fourth Proportional to 1,644,658.80, 2,465,821.80 and 746,530.80

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Solution

The fourth proportional to 1,644,658.80, 2,465,821.80 and 746,530.80 is: 1,119,266.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,644,658.80 : 2,465,821.80 = 746,530.80 : x
  2. Step 2: Convert to fraction form
    1,644,658.80/2,465,821.80 = 746,530.80/x
  3. Step 3: Cross multiply
    1,644,658.80x = 2,465,821.80 × 746,530.80
  4. Step 4: Simplify right side
    1,644,658.80x = 1,840,811,921,011.44
  5. Step 5: Solve for x
    x = 1,840,811,921,011.44/1,644,658.80
  6. Step 6: Final answer
    x = 1,119,266.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.